pub const STIP : usize = 1 << 5;
pub const SSIP : usize = 1 << 1;
pub const MSIP : usize = 1 << 3;
pub const MTIP : usize = 1 << 7;
pub const SEIP : usize = 1 << 9;
pub const MEIP : usize = 1 << 11;

pub const STIE : usize = 1 << 5;
pub const SSIE : usize = 1 << 1;
pub const MSIE : usize = 1 << 3;
pub const MTIE : usize = 1 << 7;
pub const SEIE : usize = 1 << 9;
pub const MEIE : usize = 1 << 11;

pub const SPP : usize = 1 << 8;
pub const MPP : usize = 1 << 11;